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ASoC: amd: dma driver changes for bt i2s instance

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With in ACP, There are three I2S controllers can be
configured/enabled ( I2S SP, I2S MICSP, I2S BT).
Default enabled I2S controller instance is I2S SP.
This patch provides required changes to support I2S BT
controller Instance.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Mukunda, Vijendar 2018-05-08 10:17:53 +05:30 committed by Mark Brown
parent 839a12c799
commit ccfbb4f572
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
3 changed files with 263 additions and 57 deletions
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24
sound/soc/amd/acp-da7219-max98357a.c
View File

@ -36,6 +36,7 @@
#include <linux/input.h>
#include <linux/acpi.h>
#include "acp.h"
#include "../codecs/da7219.h"
#include "../codecs/da7219-aad.h"
@ -44,6 +45,7 @@
static struct snd_soc_jack cz_jack;
static struct clk *da7219_dai_clk;
extern int bt_uart_enable;
static int cz_da7219_init(struct snd_soc_pcm_runtime *rtd)
{
@ -132,6 +134,9 @@ static const struct snd_pcm_hw_constraint_list constraints_channels = {
static int cz_da7219_startup(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_card *card = rtd->card;
struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
/*
* On this platform for PCM device we support stereo
@ -143,6 +148,7 @@ static int cz_da7219_startup(struct snd_pcm_substream *substream)
snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
&constraints_rates);
machine->i2s_instance = I2S_BT_INSTANCE;
return da7219_clk_enable(substream);
}
@ -153,6 +159,11 @@ static void cz_da7219_shutdown(struct snd_pcm_substream *substream)
static int cz_max_startup(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_card *card = rtd->card;
struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
machine->i2s_instance = I2S_SP_INSTANCE;
return da7219_clk_enable(substream);
}
@ -163,6 +174,11 @@ static void cz_max_shutdown(struct snd_pcm_substream *substream)
static int cz_dmic_startup(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_card *card = rtd->card;
struct acp_platform_info *machine = snd_soc_card_get_drvdata(card);
machine->i2s_instance = I2S_SP_INSTANCE;
return da7219_clk_enable(substream);
}
@ -266,10 +282,16 @@ static int cz_probe(struct platform_device *pdev)
{
int ret;
struct snd_soc_card *card;
struct acp_platform_info *machine;
machine = devm_kzalloc(&pdev->dev, sizeof(struct acp_platform_info),
GFP_KERNEL);
if (!machine)
return -ENOMEM;
card = &cz_card;
cz_card.dev = &pdev->dev;
platform_set_drvdata(pdev, card);
snd_soc_card_set_drvdata(card, machine);
ret = devm_snd_soc_register_card(&pdev->dev, &cz_card);
if (ret) {
dev_err(&pdev->dev,
@ -277,6 +299,8 @@ static int cz_probe(struct platform_device *pdev)
cz_card.name, ret);
return ret;
}
bt_uart_enable = !device_property_read_bool(&pdev->dev,
"bt-pad-enable");
return 0;
}

256
sound/soc/amd/acp-pcm-dma.c
View File

@ -37,12 +37,14 @@
#define MAX_BUFFER (PLAYBACK_MAX_PERIOD_SIZE * PLAYBACK_MAX_NUM_PERIODS)
#define MIN_BUFFER MAX_BUFFER
#define ST_PLAYBACK_MAX_PERIOD_SIZE 8192
#define ST_PLAYBACK_MAX_PERIOD_SIZE 4096
#define ST_CAPTURE_MAX_PERIOD_SIZE ST_PLAYBACK_MAX_PERIOD_SIZE
#define ST_MAX_BUFFER (ST_PLAYBACK_MAX_PERIOD_SIZE * PLAYBACK_MAX_NUM_PERIODS)
#define ST_MIN_BUFFER ST_MAX_BUFFER
#define DRV_NAME "acp_audio_dma"
bool bt_uart_enable = true;
EXPORT_SYMBOL(bt_uart_enable);
static const struct snd_pcm_hardware acp_pcm_hardware_playback = {
.info = SNDRV_PCM_INFO_INTERLEAVED |
@ -357,6 +359,9 @@ static void acp_dma_start(void __iomem *acp_mmio,
case ACP_TO_I2S_DMA_CH_NUM:
case ACP_TO_SYSRAM_CH_NUM:
case I2S_TO_ACP_DMA_CH_NUM:
case ACP_TO_I2S_DMA_BT_INSTANCE_CH_NUM:
case ACP_TO_SYSRAM_BT_INSTANCE_CH_NUM:
case I2S_TO_ACP_DMA_BT_INSTANCE_CH_NUM:
dma_ctrl |= ACP_DMA_CNTL_0__DMAChIOCEn_MASK;
break;
default:
@ -519,6 +524,13 @@ static int acp_init(void __iomem *acp_mmio, u32 asic_type)
val &= ~ACP_SOFT_RESET__SoftResetAud_MASK;
acp_reg_write(val, acp_mmio, mmACP_SOFT_RESET);
/* For BT instance change pins from UART to BT */
if (!bt_uart_enable) {
val = acp_reg_read(acp_mmio, mmACP_BT_UART_PAD_SEL);
val |= ACP_BT_UART_PAD_SELECT_MASK;
acp_reg_write(val, acp_mmio, mmACP_BT_UART_PAD_SEL);
}
/* initiailize Onion control DAGB register */
acp_reg_write(ACP_ONION_CNTL_DEFAULT, acp_mmio,
mmACP_AXI2DAGB_ONION_CNTL);
@ -637,6 +649,24 @@ static irqreturn_t dma_irq_handler(int irq, void *arg)
acp_mmio, mmACP_EXTERNAL_INTR_STAT);
}
if ((intr_flag & BIT(ACP_TO_I2S_DMA_BT_INSTANCE_CH_NUM)) != 0) {
valid_irq = true;
if (acp_reg_read(acp_mmio, mmACP_DMA_CUR_DSCR_9) ==
PLAYBACK_START_DMA_DESCR_CH9)
dscr_idx = PLAYBACK_END_DMA_DESCR_CH8;
else
dscr_idx = PLAYBACK_START_DMA_DESCR_CH8;
config_acp_dma_channel(acp_mmio,
SYSRAM_TO_ACP_BT_INSTANCE_CH_NUM,
dscr_idx, 1, 0);
acp_dma_start(acp_mmio, SYSRAM_TO_ACP_BT_INSTANCE_CH_NUM,
false);
snd_pcm_period_elapsed(irq_data->play_i2sbt_stream);
acp_reg_write((intr_flag &
BIT(ACP_TO_I2S_DMA_BT_INSTANCE_CH_NUM)) << 16,
acp_mmio, mmACP_EXTERNAL_INTR_STAT);
}
if ((intr_flag & BIT(I2S_TO_ACP_DMA_CH_NUM)) != 0) {
valid_irq = true;
if (acp_reg_read(acp_mmio, mmACP_DMA_CUR_DSCR_15) ==
@ -659,6 +689,31 @@ static irqreturn_t dma_irq_handler(int irq, void *arg)
acp_mmio, mmACP_EXTERNAL_INTR_STAT);
}
if ((intr_flag & BIT(I2S_TO_ACP_DMA_BT_INSTANCE_CH_NUM)) != 0) {
valid_irq = true;
if (acp_reg_read(acp_mmio, mmACP_DMA_CUR_DSCR_11) ==
CAPTURE_START_DMA_DESCR_CH11)
dscr_idx = CAPTURE_END_DMA_DESCR_CH10;
else
dscr_idx = CAPTURE_START_DMA_DESCR_CH10;
config_acp_dma_channel(acp_mmio,
ACP_TO_SYSRAM_BT_INSTANCE_CH_NUM,
dscr_idx, 1, 0);
acp_dma_start(acp_mmio, ACP_TO_SYSRAM_BT_INSTANCE_CH_NUM,
false);
acp_reg_write((intr_flag &
BIT(I2S_TO_ACP_DMA_BT_INSTANCE_CH_NUM)) << 16,
acp_mmio, mmACP_EXTERNAL_INTR_STAT);
}
if ((intr_flag & BIT(ACP_TO_SYSRAM_BT_INSTANCE_CH_NUM)) != 0) {
valid_irq = true;
snd_pcm_period_elapsed(irq_data->capture_i2sbt_stream);
acp_reg_write((intr_flag &
BIT(ACP_TO_SYSRAM_BT_INSTANCE_CH_NUM)) << 16,
acp_mmio, mmACP_EXTERNAL_INTR_STAT);
}
if (valid_irq)
return IRQ_HANDLED;
else
@ -714,11 +769,11 @@ static int acp_dma_open(struct snd_pcm_substream *substream)
* This enablement is not required for another stream, if current
* stream is not closed
*/
if (!intr_data->play_i2ssp_stream && !intr_data->capture_i2ssp_stream)
if (!intr_data->play_i2ssp_stream && !intr_data->capture_i2ssp_stream &&
!intr_data->play_i2sbt_stream && !intr_data->capture_i2sbt_stream)
acp_reg_write(1, adata->acp_mmio, mmACP_EXTERNAL_INTR_ENB);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
intr_data->play_i2ssp_stream = substream;
/*
* For Stoney, Memory gating is disabled,i.e SRAM Banks
* won't be turned off. The default state for SRAM banks is ON.
@ -730,7 +785,6 @@ static int acp_dma_open(struct snd_pcm_substream *substream)
bank, true);
}
} else {
intr_data->capture_i2ssp_stream = substream;
if (intr_data->asic_type != CHIP_STONEY) {
for (bank = 5; bank <= 8; bank++)
acp_set_sram_bank_state(intr_data->acp_mmio,
@ -754,6 +808,8 @@ static int acp_dma_hw_params(struct snd_pcm_substream *substream,
struct snd_soc_component *component = snd_soc_rtdcom_lookup(prtd,
DRV_NAME);
struct audio_drv_data *adata = dev_get_drvdata(component->dev);
struct snd_soc_card *card = prtd->card;
struct acp_platform_info *pinfo = snd_soc_card_get_drvdata(card);
runtime = substream->runtime;
rtd = runtime->private_data;
@ -761,52 +817,109 @@ static int acp_dma_hw_params(struct snd_pcm_substream *substream,
if (WARN_ON(!rtd))
return -EINVAL;
rtd->i2s_instance = pinfo->i2s_instance;
if (adata->asic_type == CHIP_STONEY) {
val = acp_reg_read(adata->acp_mmio,
mmACP_I2S_16BIT_RESOLUTION_EN);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
val |= ACP_I2S_SP_16BIT_RESOLUTION_EN;
else
val |= ACP_I2S_MIC_16BIT_RESOLUTION_EN;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
switch (rtd->i2s_instance) {
case I2S_BT_INSTANCE:
val |= ACP_I2S_BT_16BIT_RESOLUTION_EN;
break;
case I2S_SP_INSTANCE:
default:
val |= ACP_I2S_SP_16BIT_RESOLUTION_EN;
}
} else {
switch (rtd->i2s_instance) {
case I2S_BT_INSTANCE:
val |= ACP_I2S_BT_16BIT_RESOLUTION_EN;
break;
case I2S_SP_INSTANCE:
default:
val |= ACP_I2S_MIC_16BIT_RESOLUTION_EN;
}
}
acp_reg_write(val, adata->acp_mmio,
mmACP_I2S_16BIT_RESOLUTION_EN);
}
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
switch (adata->asic_type) {
case CHIP_STONEY:
rtd->pte_offset = ACP_ST_PLAYBACK_PTE_OFFSET;
switch (rtd->i2s_instance) {
case I2S_BT_INSTANCE:
rtd->pte_offset = ACP_ST_BT_PLAYBACK_PTE_OFFSET;
rtd->ch1 = SYSRAM_TO_ACP_BT_INSTANCE_CH_NUM;
rtd->ch2 = ACP_TO_I2S_DMA_BT_INSTANCE_CH_NUM;
rtd->sram_bank = ACP_SRAM_BANK_3_ADDRESS;
rtd->destination = TO_BLUETOOTH;
rtd->dma_dscr_idx_1 = PLAYBACK_START_DMA_DESCR_CH8;
rtd->dma_dscr_idx_2 = PLAYBACK_START_DMA_DESCR_CH9;
rtd->byte_cnt_high_reg_offset =
mmACP_I2S_BT_TRANSMIT_BYTE_CNT_HIGH;
rtd->byte_cnt_low_reg_offset =
mmACP_I2S_BT_TRANSMIT_BYTE_CNT_LOW;
adata->play_i2sbt_stream = substream;
break;
case I2S_SP_INSTANCE:
default:
rtd->pte_offset = ACP_PLAYBACK_PTE_OFFSET;
switch (adata->asic_type) {
case CHIP_STONEY:
rtd->pte_offset = ACP_ST_PLAYBACK_PTE_OFFSET;
break;
default:
rtd->pte_offset = ACP_PLAYBACK_PTE_OFFSET;
}
rtd->ch1 = SYSRAM_TO_ACP_CH_NUM;
rtd->ch2 = ACP_TO_I2S_DMA_CH_NUM;
rtd->sram_bank = ACP_SRAM_BANK_1_ADDRESS;
rtd->destination = TO_ACP_I2S_1;
rtd->dma_dscr_idx_1 = PLAYBACK_START_DMA_DESCR_CH12;
rtd->dma_dscr_idx_2 = PLAYBACK_START_DMA_DESCR_CH13;
rtd->byte_cnt_high_reg_offset =
mmACP_I2S_TRANSMIT_BYTE_CNT_HIGH;
rtd->byte_cnt_low_reg_offset =
mmACP_I2S_TRANSMIT_BYTE_CNT_LOW;
adata->play_i2ssp_stream = substream;
}
rtd->ch1 = SYSRAM_TO_ACP_CH_NUM;
rtd->ch2 = ACP_TO_I2S_DMA_CH_NUM;
rtd->sram_bank = ACP_SRAM_BANK_1_ADDRESS;
rtd->destination = TO_ACP_I2S_1;
rtd->dma_dscr_idx_1 = PLAYBACK_START_DMA_DESCR_CH12;
rtd->dma_dscr_idx_2 = PLAYBACK_START_DMA_DESCR_CH13;
rtd->byte_cnt_high_reg_offset =
mmACP_I2S_TRANSMIT_BYTE_CNT_HIGH;
rtd->byte_cnt_low_reg_offset = mmACP_I2S_TRANSMIT_BYTE_CNT_LOW;
} else {
switch (adata->asic_type) {
case CHIP_STONEY:
rtd->pte_offset = ACP_ST_CAPTURE_PTE_OFFSET;
rtd->sram_bank = ACP_SRAM_BANK_2_ADDRESS;
switch (rtd->i2s_instance) {
case I2S_BT_INSTANCE:
rtd->pte_offset = ACP_ST_BT_CAPTURE_PTE_OFFSET;
rtd->ch1 = ACP_TO_SYSRAM_BT_INSTANCE_CH_NUM;
rtd->ch2 = I2S_TO_ACP_DMA_BT_INSTANCE_CH_NUM;
rtd->sram_bank = ACP_SRAM_BANK_4_ADDRESS;
rtd->destination = FROM_BLUETOOTH;
rtd->dma_dscr_idx_1 = CAPTURE_START_DMA_DESCR_CH10;
rtd->dma_dscr_idx_2 = CAPTURE_START_DMA_DESCR_CH11;
rtd->byte_cnt_high_reg_offset =
mmACP_I2S_BT_RECEIVE_BYTE_CNT_HIGH;
rtd->byte_cnt_low_reg_offset =
mmACP_I2S_BT_RECEIVE_BYTE_CNT_LOW;
adata->capture_i2sbt_stream = substream;
break;
case I2S_SP_INSTANCE:
default:
rtd->pte_offset = ACP_CAPTURE_PTE_OFFSET;
rtd->sram_bank = ACP_SRAM_BANK_5_ADDRESS;
rtd->ch1 = ACP_TO_SYSRAM_CH_NUM;
rtd->ch2 = I2S_TO_ACP_DMA_CH_NUM;
switch (adata->asic_type) {
case CHIP_STONEY:
rtd->pte_offset = ACP_ST_CAPTURE_PTE_OFFSET;
rtd->sram_bank = ACP_SRAM_BANK_2_ADDRESS;
break;
default:
rtd->pte_offset = ACP_CAPTURE_PTE_OFFSET;
rtd->sram_bank = ACP_SRAM_BANK_5_ADDRESS;
}
rtd->destination = FROM_ACP_I2S_1;
rtd->dma_dscr_idx_1 = CAPTURE_START_DMA_DESCR_CH14;
rtd->dma_dscr_idx_2 = CAPTURE_START_DMA_DESCR_CH15;
rtd->byte_cnt_high_reg_offset =
mmACP_I2S_RECEIVED_BYTE_CNT_HIGH;
rtd->byte_cnt_low_reg_offset =
mmACP_I2S_RECEIVED_BYTE_CNT_LOW;
adata->capture_i2ssp_stream = substream;
}
rtd->ch1 = ACP_TO_SYSRAM_CH_NUM;
rtd->ch2 = I2S_TO_ACP_DMA_CH_NUM;
rtd->destination = FROM_ACP_I2S_1;
rtd->dma_dscr_idx_1 = CAPTURE_START_DMA_DESCR_CH14;
rtd->dma_dscr_idx_2 = CAPTURE_START_DMA_DESCR_CH15;
rtd->byte_cnt_high_reg_offset =
mmACP_I2S_RECEIVED_BYTE_CNT_HIGH;
rtd->byte_cnt_low_reg_offset = mmACP_I2S_RECEIVED_BYTE_CNT_LOW;
}
size = params_buffer_bytes(params);
@ -999,24 +1112,39 @@ static int acp_dma_close(struct snd_pcm_substream *substream)
struct audio_drv_data *adata = dev_get_drvdata(component->dev);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
adata->play_i2ssp_stream = NULL;
/*
* For Stoney, Memory gating is disabled,i.e SRAM Banks
* won't be turned off. The default state for SRAM banks is ON.
* Setting SRAM bank state code skipped for STONEY platform.
* added condition checks for Carrizo platform only
*/
if (adata->asic_type != CHIP_STONEY) {
for (bank = 1; bank <= 4; bank++)
acp_set_sram_bank_state(adata->acp_mmio, bank,
false);
switch (rtd->i2s_instance) {
case I2S_BT_INSTANCE:
adata->play_i2sbt_stream = NULL;
break;
case I2S_SP_INSTANCE:
default:
adata->play_i2ssp_stream = NULL;
/*
* For Stoney, Memory gating is disabled,i.e SRAM Banks
* won't be turned off. The default state for SRAM banks
* is ON.Setting SRAM bank state code skipped for STONEY
* platform. Added condition checks for Carrizo platform
* only.
*/
if (adata->asic_type != CHIP_STONEY) {
for (bank = 1; bank <= 4; bank++)
acp_set_sram_bank_state(adata->acp_mmio,
bank, false);
}
}
} else {
adata->capture_i2ssp_stream = NULL;
if (adata->asic_type != CHIP_STONEY) {
for (bank = 5; bank <= 8; bank++)
acp_set_sram_bank_state(adata->acp_mmio, bank,
false);
switch (rtd->i2s_instance) {
case I2S_BT_INSTANCE:
adata->capture_i2sbt_stream = NULL;
break;
case I2S_SP_INSTANCE:
default:
adata->capture_i2ssp_stream = NULL;
if (adata->asic_type != CHIP_STONEY) {
for (bank = 5; bank <= 8; bank++)
acp_set_sram_bank_state(adata->acp_mmio,
bank, false);
}
}
}
@ -1024,7 +1152,8 @@ static int acp_dma_close(struct snd_pcm_substream *substream)
* Disable ACP irq, when the current stream is being closed and
* another stream is also not active.
*/
if (!adata->play_i2ssp_stream && !adata->capture_i2ssp_stream)
if (!adata->play_i2ssp_stream && !adata->capture_i2ssp_stream &&
!adata->play_i2sbt_stream && !adata->capture_i2sbt_stream)
acp_reg_write(0, adata->acp_mmio, mmACP_EXTERNAL_INTR_ENB);
kfree(rtd);
return 0;
@ -1078,6 +1207,8 @@ static int acp_audio_probe(struct platform_device *pdev)
audio_drv_data->play_i2ssp_stream = NULL;
audio_drv_data->capture_i2ssp_stream = NULL;
audio_drv_data->play_i2sbt_stream = NULL;
audio_drv_data->capture_i2sbt_stream = NULL;
audio_drv_data->asic_type = *pdata;
@ -1134,6 +1265,7 @@ static int acp_pcm_resume(struct device *dev)
{
u16 bank;
int status;
struct audio_substream_data *rtd;
struct audio_drv_data *adata = dev_get_drvdata(dev);
status = acp_init(adata->acp_mmio, adata->asic_type);
@ -1153,9 +1285,8 @@ static int acp_pcm_resume(struct device *dev)
acp_set_sram_bank_state(adata->acp_mmio, bank,
true);
}
config_acp_dma(adata->acp_mmio,
adata->play_i2ssp_stream->runtime->private_data,
adata->asic_type);
rtd = adata->play_i2ssp_stream->runtime->private_data;
config_acp_dma(adata->acp_mmio, rtd, adata->asic_type);
}
if (adata->capture_i2ssp_stream &&
adata->capture_i2ssp_stream->runtime) {
@ -1164,9 +1295,20 @@ static int acp_pcm_resume(struct device *dev)
acp_set_sram_bank_state(adata->acp_mmio, bank,
true);
}
config_acp_dma(adata->acp_mmio,
adata->capture_i2ssp_stream->runtime->private_data,
adata->asic_type);
rtd = adata->capture_i2ssp_stream->runtime->private_data;
config_acp_dma(adata->acp_mmio, rtd, adata->asic_type);
}
if (adata->asic_type != CHIP_CARRIZO) {
if (adata->play_i2sbt_stream &&
adata->play_i2sbt_stream->runtime) {
rtd = adata->play_i2sbt_stream->runtime->private_data;
config_acp_dma(adata->acp_mmio, rtd, adata->asic_type);
}
if (adata->capture_i2sbt_stream &&
adata->capture_i2sbt_stream->runtime) {
rtd = adata->capture_i2sbt_stream->runtime->private_data;
config_acp_dma(adata->acp_mmio, rtd, adata->asic_type);
}
}
acp_reg_write(1, adata->acp_mmio, mmACP_EXTERNAL_INTR_ENB);
return 0;

40
sound/soc/amd/acp.h
View File

@ -13,6 +13,8 @@
/* Playback and Capture Offset for Stoney */
#define ACP_ST_PLAYBACK_PTE_OFFSET 0x04
#define ACP_ST_CAPTURE_PTE_OFFSET 0x00
#define ACP_ST_BT_PLAYBACK_PTE_OFFSET 0x08
#define ACP_ST_BT_CAPTURE_PTE_OFFSET 0x0c
#define ACP_GARLIC_CNTL_DEFAULT 0x00000FB4
#define ACP_ONION_CNTL_DEFAULT 0x00000FB4
@ -46,8 +48,13 @@
#define TO_ACP_I2S_1 0x2
#define TO_ACP_I2S_2 0x4
#define TO_BLUETOOTH 0x3
#define FROM_ACP_I2S_1 0xa
#define FROM_ACP_I2S_2 0xb
#define FROM_BLUETOOTH 0xb
#define I2S_SP_INSTANCE 0x01
#define I2S_BT_INSTANCE 0x02
#define ACP_TILE_ON_MASK 0x03
#define ACP_TILE_OFF_MASK 0x02
@ -68,6 +75,14 @@
#define ACP_TO_SYSRAM_CH_NUM 14
#define I2S_TO_ACP_DMA_CH_NUM 15
/* Playback DMA Channels for I2S BT instance */
#define SYSRAM_TO_ACP_BT_INSTANCE_CH_NUM 8
#define ACP_TO_I2S_DMA_BT_INSTANCE_CH_NUM 9
/* Capture DMA Channels for I2S BT Instance */
#define ACP_TO_SYSRAM_BT_INSTANCE_CH_NUM 10
#define I2S_TO_ACP_DMA_BT_INSTANCE_CH_NUM 11
#define NUM_DSCRS_PER_CHANNEL 2
#define PLAYBACK_START_DMA_DESCR_CH12 0
@ -80,9 +95,23 @@
#define CAPTURE_START_DMA_DESCR_CH15 6
#define CAPTURE_END_DMA_DESCR_CH15 7
/* I2S BT Instance DMA Descriptors */
#define PLAYBACK_START_DMA_DESCR_CH8 8
#define PLAYBACK_END_DMA_DESCR_CH8 9
#define PLAYBACK_START_DMA_DESCR_CH9 10
#define PLAYBACK_END_DMA_DESCR_CH9 11
#define CAPTURE_START_DMA_DESCR_CH10 12
#define CAPTURE_END_DMA_DESCR_CH10 13
#define CAPTURE_START_DMA_DESCR_CH11 14
#define CAPTURE_END_DMA_DESCR_CH11 15
#define mmACP_I2S_16BIT_RESOLUTION_EN 0x5209
#define ACP_I2S_MIC_16BIT_RESOLUTION_EN 0x01
#define ACP_I2S_SP_16BIT_RESOLUTION_EN 0x02
#define ACP_I2S_BT_16BIT_RESOLUTION_EN 0x04
#define ACP_BT_UART_PAD_SELECT_MASK 0x1
enum acp_dma_priority_level {
/* 0x0 Specifies the DMA channel is given normal priority */
ACP_DMA_PRIORITY_LEVEL_NORMAL = 0x0,
@ -95,6 +124,7 @@ struct audio_substream_data {
struct page *pg;
unsigned int order;
u16 num_of_pages;
u16 i2s_instance;
u16 direction;
u16 ch1;
u16 ch2;
@ -113,10 +143,20 @@ struct audio_substream_data {
struct audio_drv_data {
struct snd_pcm_substream *play_i2ssp_stream;
struct snd_pcm_substream *capture_i2ssp_stream;
struct snd_pcm_substream *play_i2sbt_stream;
struct snd_pcm_substream *capture_i2sbt_stream;
void __iomem *acp_mmio;
u32 asic_type;
};
/*
* this structure used for platform data transfer between machine driver
* and dma driver
*/
struct acp_platform_info {
u16 i2s_instance;
};
union acp_dma_count {
struct {
u32 low;